scholarly journals Maternal Plasma miRNAs Expression in Preeclamptic Pregnancies

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Hailing Li ◽  
Qinyu Ge ◽  
Li Guo ◽  
Zuhong Lu

Objective. Preeclampsia (PE) is a pregnancy-specific syndrome and one of the leading causes of maternal and fetal morbidity and mortality. The pathophysiological mechanisms of PE remain poorly known. Recently, circulating miRNAs are considered as potential useful noninvasive biomarkers. The aim of this study was to identify differentially expressed plasma miRNAs in preeclamptic pregnancies compared with normal pregnancies.Methods. Maternal plasma miRNA expression profiles were detected by SOLiD sequencing. Differential expressions between mPE/sPE and control group were found. Next, four differentially expressed plasma miRNAs were chosen to validate their expression in other large scale samples by real-time PCR.Results. In terms of sequencing results, we identified that 51 miRNAs were differentially expressed. Four differentially expressed plasma miRNAs (miR-141, miR-144, miR-221, and miR-29a) were selected to validate the sequencing results. RT-PCR data confirmed the reliability of sequencing results. The further statistical analysis showed that maternal plasma miR-141 and miR-29a are significantly overexpressed in mPE (P<0.05). Maternal plasma miR-144 is significantly underexpressed in mPE and sPE (P<0.05).Conclusions. Results showed that there were differentially expressed maternal plasma miRNAs in patients with preeclampsia. These plasma miRNAs might be used as notable biomarkers for diagnosis of preeclampsia.

2019 ◽  
Vol 2019 ◽  
pp. 1-11
Author(s):  
Yao Wang ◽  
Liping Dong ◽  
Peng Liu ◽  
Ying Chen ◽  
Shaodan Jia ◽  
...  

Background. We investigated whether Chuanhutongfeng mixture has actions on chronic gouty arthritis (CGA) by regulating miRNAs. Methods. A total of 255 patients with CGA and 30 controls were enrolled. miRNA expression profiles and cluster analysis were preformed; RT-qPCR was used to detect miRNAs associated with CGA. Patients were allocated into Chuanhutongfeng mixture, allopurinol (positive control), and control (etoricoxib) groups. Expression of plasma miRNAs was measured before and after treatments; expression of chemokine 2 (CCL2) and interleukin 8 (CXCL8) was determined by ELISA. Results. 48 miRNAs were differentially expressed and compared to controls. 36 miRNAs expression levels were > 1.5 times and 12 miRNAs < 1.5 times compared to the controls. miR-339-5p, miR-486-5p, and miR-361-5p levels in patients with CGA were lower than in controls (P < 0.05). This trial showed that the Chuanhutongfeng mixture and allopurinol groups had upregulated the expressions of miR-486-5, miR-339-5p, and miR-361-5p and decreased levels of CCL2 and CXCL8 proteins. After 8 weeks of treatment, Chuanhutongfeng mixture decreased serum uric acid levels more than allopurinol (P < 0.05) and reduced levels of CCL2 and CXCL8 protein significantly more than in the allopurinol and control groups. Conclusions. The therapeutic actions of Chuanhutongfeng mixture inhibit the expression of proteins CCL2 and CXCL8 in plasma and upregulated the expressions of three miRNAs (miR-486-5p, miR-339-5p, and miR-361-5p).


2017 ◽  
Vol 84 (3) ◽  
pp. 300-308 ◽  
Author(s):  
Junhua Pu ◽  
Rui Li ◽  
Chenglong Zhang ◽  
Dan Chen ◽  
Xiangxiang Liao ◽  
...  

This study aimed to describe the expression profiles of microRNAs (miRNAs) from mammary gland tissues collected from dairy cows with Streptococcus agalactiae-induced mastitis and to identify differentially expressed miRNAs related to mastitis. The mammary glands of Chinese Holstein cows were challenged with Streptococcus agalactiae to induce mastitis. Small RNAs were isolated from the mammary tissues of the test and control groups and then sequenced using the Solexa sequencing technology to construct two small RNA libraries. Potential target genes of these differentially expressed miRNAs were predicted using the RNAhybrid software, and KEGG pathways associated with these genes were analysed. A total of 18 555 913 and 20 847 000 effective reads were obtained from the test and control groups, respectively. In total, 373 known and 399 novel miRNAs were detected in the test group, and 358 known and 232 novel miRNAs were uncovered in the control group. A total of 35 differentially expressed miRNAs were identified in the test group compared to the control group, including 10 up-regulated miRNAs and 25 down-regulated miRNAs. Of these miRNAs, miR-223 exhibited the highest degree of up-regulation with an approximately 3-fold increase in expression, whereas miR-26a exhibited the most decreased expression level (more than 2-fold). The RNAhybrid software predicted 18 801 genes as potential targets of these 35 miRNAs. Furthermore, several immune response and signal transduction pathways, including the RIG-I-like receptor signalling pathway, cytosolic DNA sensing pathway and Notch signal pathway, were enriched in these predicted targets. In summary, this study provided experimental evidence for the mechanism underlying the regulation of bovine mastitis by miRNAs and showed that miRNAs might be involved in signal pathways during S. agalactiae-induced mastitis.


2012 ◽  
Vol 413 (5-6) ◽  
pp. 568-576 ◽  
Author(s):  
Hailing Li ◽  
Li Guo ◽  
Qian Wu ◽  
JiaFeng Lu ◽  
Qinyu Ge ◽  
...  

2017 ◽  
Vol 44 (1) ◽  
pp. 303-313 ◽  
Author(s):  
Lin Liu ◽  
Lifei Li ◽  
Xiaoling Ma ◽  
Feng Yue ◽  
Yiqing Wang ◽  
...  

Background/Aims: CircRNAs play an important role in regulating gene expression and the specific role of circRNAs in the pathogenesis of repeated implantation failure remains unclear. The aim of this study is to assess the differentially expressed circRNAs in patients with repeated implantation failure. Methods: We screened circRNA expression profiles in endometrial biopsies taken from six women with repeated implantation failure and control group using circRNA microarray. Bioinformatic analyses were applied to study these differentially expressed circRNAs. Furthermore, quantitative reverse transcription polymerase chain reaction (qRT-PCR) was performed to confirm these results. Results: The data from circRNA microarrays clearly revealed that 856 unique circRNAs were significantly altered (p<0.05). The up-regulated expression of hsa_circRNA_070616, hsa_circRNA_103716, hsa_circRNA_104001, hsa_circRNA_104854 and the down-regulated expression of hsa_circRNA_004183, hsa_circRNA_044353, hsa_circRNA_404686 were further validated by qRT-PCR. Conclusion: this study demonstrates that a number of circRNAs were differentially expressed in patients with repeated implantation failure compared with normal controls and may offer novel molecular candidates for diagnosis and clinical treatment of embryo implantation failures.


2020 ◽  
Author(s):  
Hiroshi Honda ◽  
Norihisa Nishimichi ◽  
Michinori Yamashita ◽  
Yumiko Akimoto ◽  
Hirotoshi Tanimoto ◽  
...  

Abstract Background: Endometriosis, which affects up to 10% women of reproductive age, is defined by the presence of ectopic endometrial tissue outside the uterus. The current key drug of hormonal therapies for endometriosis is dienogest, which is a progestin with high specificity for the progesterone receptor. Although many findings about the anti-endometriotic effect of dienogest on endometriosis have been reported, the precise mechanisms of dienogest's anti-endometriotic effect remain unknown. Methods: To investigate the direct anti-endometriotic effect of dienogest on endometriotic cells, we determined and compared the genome-wide gene expression profiles of endometriotic stromal cells treated with dienogest (Dienogest group) and those not treated with dienogest (Control group) and then performed a pathway analysis using these data. To test the microarray data, we performed real-time RT-PCRs for matrix metallopeptidase (MMP)-1, MMP-3, MMP-10, and TIMP-4.Results: Six-hundred forty-seven genes were revealed to be differentially expressed between the Dienogest and Control groups. Of them, 314 genes were upregulated and 333 genes were downregulated in the Dienogest group compared to the Control group. We identified 20 canonical pathways that are significantly distinct in the Dienogest group versus the Control group. Among the 20 canonical pathways, MMPs including MMP-1, -3, and -10 were found to be the most involved genes. Conclusions: Our results suggest that dienogest may exert its anti-endometriotic effect through the direct suppression of MMPs.


2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Xuefeng Gu ◽  
Dongyang Jiang ◽  
Yue Yang ◽  
Peng Zhang ◽  
Guoqing Wan ◽  
...  

Background. Moyamoya disease (MMD) is a rare cerebrovascular disease characterized by chronic progressive stenosis or occlusion of the bilateral internal carotid artery (ICA), the anterior cerebral artery (ACA), and the middle cerebral artery (MCA). MMD is secondary to the formation of an abnormal vascular network at the base of the skull. However, the etiology and pathogenesis of MMD remain poorly understood. Methods. A competing endogenous RNA (ceRNA) network was constructed by analyzing sample-matched messenger RNA (mRNA), long non-coding RNA (lncRNA), and microRNA (miRNA) expression profiles from MMD patients and control samples. Then, a protein-protein interaction (PPI) network was constructed to identify crucial genes associated with MMD. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes pathway (KEGG) enrichment analyses were employed with the DAVID database to investigate the underlying functions of differentially expressed mRNAs (DEmRNAs) involved in the ceRNA network. CMap was used to identify potential small drug molecules. Results. A total of 94 miRNAs, 3649 lncRNAs, and 2294 mRNAs were differentially expressed between MMD patients and control samples. A synergistic ceRNA lncRNA-miRNA-mRNA regulatory network was constructed. Core regulatory miRNAs (miR-107 and miR-423-5p) and key mRNAs (STAT5B, FOSL2, CEBPB, and CXCL16) involved in the ceRNA network were identified. GO and KEGG analyses indicated that the DEmRNAs were involved in the regulation of the immune system and inflammation in MMD. Finally, two potential small molecule drugs, CAY-10415 and indirubin, were identified by CMap as candidate drugs for treating MMD. Conclusions. The present study used bioinformatics analysis of candidate RNAs to identify a series of clearly altered miRNAs, lncRNAs, and mRNAs involved in MMD. Furthermore, a ceRNA lncRNA-miRNA-mRNA regulatory network was constructed, which provides insights into the novel molecular pathogenesis of MMD, thus giving promising clues for clinical therapy.


2020 ◽  
Author(s):  
Xuewen Hou ◽  
Zijun Yuan ◽  
Xuan Wang ◽  
Rui Cheng ◽  
Xiaoguang Zhou ◽  
...  

Abstract Hypoxic-ischemic brain injury (HIBD) causes neonatal death and serious neurological disability; however, there are currently no promising therapies for it excepting cooling. Therefore, in this study, we used peptidome analysis to identify differentially expressed peptides in cerebrospinal fluid (CSF) of neonates with HIBD or controls, which may give a foundation for finding new promising drugs of neonatal HIBD. CSF samples were collected from neonates with HIBD (n = 4) or controls (n = 4). ITRAQ LC-MS/MS was used to identify differentially expressed peptides between two groups. Effects of the peptide from heat shock protein 90-alpha (HSP90α/HSP90AA1) on cell viability and pyroptosis under oxygen and glucose deprivation (OGD) were analyzed using cell counting kit-8 (CCK-8) assay and Annexin V-fluorescein isothiocyanate (FITC) Assay. Expressions of NLRP3, ASC and Caspase-1 were detected by quantitative real-time polymerase chain reaction (qRT-PCR) and Western blotting. Compared with the control group, one peptide significantly up-regulated and thirty-four peptides significantly down-regulated in the CSF of neonates with HIBD. A fragment of HSP90α/HSP90AA1 is the 2671.5 Da peptide (HSQFIGYPITLFVEKER), one of the down-regulated peptides in neonatal HIBD. This peptide, we named it HIBDAP, inhibited pyroptosis of PC12 cells under OGD by suppressing expressions of NLRP3, ASC and Caspase-1. The results of our study identified the characterization and expression profiles of peptides in CSF of neonatal HIBD. Several meaningful peptides such as HIBDAP may play significant roles in neonatal HIBD and may provide new therapeutic targets for neonatal HIBD.


2021 ◽  
Vol 2021 ◽  
pp. 1-22
Author(s):  
Yiru Shao ◽  
Zhifeng Jiang ◽  
Daikun He ◽  
Jie Shen

Phosgene exposure can cause acute lung injury (ALI), for which there is no currently available effective treatment. Mesenchymal stem cells (MSCs) which have been proven to have therapeutic potential and be helpful in the treatment of various diseases, but the mechanisms underlying the function of MSCs against phosgene-induced ALI are still poorly explored. In this study, we compared the expression profiles of mRNAs, lncRNAs, and circRNAs in the lung tissues from rats of three groups—air control (group A), phosgene-exposed (group B), and phosgene + MSCs (group C). The results showed that 389 mRNAs, 198 lncRNAs, and 56 circRNAs were differently expressed between groups A and B; 130 mRNAs, 107 lncRNAs, and 35 circRNAs between groups A and C; and 41 mRNAs, 88 lncRNAs, and 18 circRNAs between groups B and C. GO and KEGG analyses indicated that the differentially expressed RNAs were mainly involved in signal transduction, immune system processes, and cancers. In addition, we used a database to predict target microRNAs (miRNAs) interacting with circRNAs and the R network software package to construct a circRNA-targeted miRNA gene network map. Our study showed new insights into changes in the RNA expression in ALI, contributing to explore the mechanisms underlying the therapeutic potential of MSCs in phosgene-induced ALI.


2007 ◽  
Vol 27 (5) ◽  
pp. 531-536 ◽  
Author(s):  
Ping-Nam Wong ◽  
Kin-Yee Lo ◽  
Gensy M.W. Tong ◽  
Shuk-Fan Chan ◽  
Man-Wai Lo ◽  
...  

Objective Fungal peritonitis (FP) is a serious complication of continuous ambulatory peritoneal dialysis (CAPD), being associated with significant morbidity and mortality. The role of nystatin prophylaxis during antibiotic therapy in the prevention of FP remains controversial, especially in programs with a modest or low baseline FP rate. The aim of the present study was to evaluate the effect of nystatin prophylaxis on the occurrence of FP in programs with a relatively modest baseline FP rate. Patients and Methods Incident and prevalent patients receiving CAPD between April 1995 and April 2005 at our center were included and divided into 2 groups. The control group included 320 patients (total follow-up 8875 patient-months) being treated without nystatin before October 1999; the nystatin group included 481 patients (total follow-up 13725 patient-months) being treated after October 1999. Nystatin tablets (500000 units, 4 times per day) were given orally during whatever use of antibiotics to cover the whole course of antibiotic therapy. Occurrence of FP and antibiotic-related FP (AR-FP) in patients with and without nystatin prophylaxis was compared. Results The two groups were of similar age but the nystatin group had a significantly higher percentage of diabetics. In addition, the nystatin group had a higher proportion of patients using disconnecting twin-bag exchange systems and had a significantly lower peritonitis rate compared with the control. There were 13 and 14 episodes of FP in the nystatin and control groups respectively. The fungal peritonitis rate of the nystatin group was slightly lower than that of the control group (0.011 vs 0.019 per patient-year) but it did not reach statistical significance. There was, however, a significant decrease in the incidence and proportion of AR-FP in the nystatin group compared with the control group, which persisted even after adjustment for the peritonitis rate. Kaplan–Meier analysis further demonstrated significantly better AR-FP-free survival in the nystatin group compared with the control group. No significant side effects were observed for nystatin. Subgroup analyses in patients of the 2 different connecting systems revealed a similar but nonsignificant trend toward reduction of AR-FP in patients given nystatin prophylaxis. Conclusion Oral nystatin prophylaxis might prevent the occurrence of AR-FP in CAPD patients, resulting in a trend toward reduction in the incidence of FP even in programs with a modest baseline FP rate. A large scale, prospective, randomized controlled trial is needed to further examine this issue.


2020 ◽  
Author(s):  
Yan Sun ◽  
Jinpeng Wang ◽  
Yuhua Li ◽  
Chunhong Yang ◽  
Xiuge Wang ◽  
...  

Abstract Background: Domestic donkeys (Equus asinus) are farm animals; they are used mainly for carrying loads in the past centuries. Recently, interests on donkey milk and meat production have increased in many countries. Donkey meat is extremely popular in China due to its high nutritional value and unique flavor. Except the origin and domestication of donkeys, few genetic studies have been conducted. Moreover, data from transcriptional profiling and microRNA (miRNA) regulation of skeletal muscle tissues in donkey are scarce. Recent developments in high-throughput sequencing techniques can offer large-scale analysis of gene expression in different species. This study aimed to explore the differences of the molecular and regulation mechanisms among donkey meat, beef, and mutton using genome-wide transcriptomic analysis and proteomic methods to provide more effective genetic information.Methods: RNA sequencing and proteomic analysis (on the basis of isobaric tags for relative and absolute quantitation) on donkey, cow, and goat muscles, and miRNAs in donkey muscles were detected. We performed a comprehensive research on total RNA, including miRNAs from donkey muscles. The mRNA expression profiles were characterized and differences in single-copy homologous genes among species were analyzed.Results: Most differentially expressed genes were associated with pathways related to protein and fat synthesis and metabolism, muscle formation, and development. We identified single nucleotide polymorphisms (SNPs) in donkey muscle and alternative splicing (AS) events. A total of 57,201 putative SNPs were found, and the main SNP variations were located in known genes. Several AS events occurred in genes related to muscle fiber. Different AS events were also noted among species. Muscle proteomic data were obtained, including all expressed proteins and differentially expressed proteins. Combined transcriptomic and proteomic analysis effectively revealed pivotal mRNAs and proteins in muscles. We found five genes associated with thin and thick filaments, which indirectly explained the characteristics of donkey muscle fibers.Conclusion: RNA-seq and iTRAQ analysis revealed altered expression of genes and proteins in three kinds of muscle. In the highly expressed genes of donkey muscle, we discovered 31 expressed genes were involved in muscle contraction and skeletal muscle fiber development. Compared with mutton, five genes related to muscle fiber synthesis were found and showed differences both at transcriptional and proteome levels in donkey muscle. Meanwhile, genetic variation and regulatory factors can combine as a database to provide more valuable molecular information for further analysis.


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